Updated user's guide with changes in input to xsd:boolean.
Updated user's guide with changes in input to xsd:boolean.

shikhar413/openmc,nhorelik/openmc,wbinventor/openmc,walshjon/openmc,walshjon/openmc,keadyk/openmc_mg_prepush,smharper/openmc,shikhar413/openmc,mit-crpg/openmc,liangjg/openmc,paulromano/openmc,johnnyliu27/openmc,sxds/opemmc,shikhar413/openmc,walshjon/openmc,wbinventor/openmc,mit-crpg/openmc,amandalund/openmc,liangjg/openmc,shenqicang/openmc,paulromano/openmc,smharper/openmc,lilulu/openmc,liangjg/openmc,mit-crpg/openmc,keadyk/openmc_mg_prepush,lilulu/openmc,kellyrowland/openmc,wbinventor/openmc,liangjg/openmc,paulromano/openmc,paulromano/openmc,kellyrowland/openmc,samuelshaner/openmc,sxds/opemmc,mjlong/openmc,amandalund/openmc,keadyk/openmc_mg_prepush,smharper/openmc,shikhar413/openmc,bhermanmit/openmc,smharper/openmc,johnnyliu27/openmc,samuelshaner/openmc,amandalund/openmc,amandalund/openmc,lilulu/openmc,shenqicang/openmc,bhermanmit/openmc,walshjon/openmc,samuelshaner/openmc,bhermanmit/cdash,wbinventor/openmc,johnnyliu27/openmc,nhorelik/openmc,mjlong/openmc,samuelshaner/openmc,mit-crpg/openmc,johnnyliu27/openmc